I've heard it might be a matter of setting up the LE to use the same Proton prefix, but I've no idea what that means or needs. Pointers needed, thanks - I'm usually able to get anything Windows working on Zorin. Thanks, David
FMLE is Windows-only and isn't tested on Linux/Proton setups, so I can't officially support that scenario.
To make it work, FMLE would need to run inside the same Proton prefix as FM26 so it can access the game's memory. But that's a Linux-side configuration on your end, not something I can guide you through.
A heads-up for next time: FMLE is free to download and try out before buying a license, so you can verify compatibility on your setup before purchasing.

